The volume rendering method does shading processes to all of the volume data directly, maintains the details of the medical images, and achieves better render results.
其中的体绘制方法直接对所有的体数据进行处理，有利于保留三维医学图像的细节信息，具有较好的绘制效果。
Ray casting is a widely recognized method for high quality volume rendering.
光线投射是一种高质量的体绘制方法。
The author proposes a view selection method for volume rendering algorithm. It combines the formulation of entropy with the ray-casting algorithm to objectively evaluate the quality of view.
作者提出了一种视图选择方法，它将信息熵公式与光投射算法结合在一起能够对体绘制中所选视图质量的优劣做出客观的评价。
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